.sub {
    margin: 40px 10px;
    width: 80px;
    height: 40px;
    border: none;
    color: #fff;
    background-color:#0d3567;
    border-radius: 10px;
    outline: none;font-weight: 600;transition: all 0.5s;cursor: pointer;
}

.sub:hover {
    background-color: #30e391;
}

.box {
    width: 20px;
    height: 20px;
    padding: 2px;
    border: 1px solid #ccc;
    border-radius: 2px;
}